From 628c219e64d0de476678437cbe8735373487b972 Mon Sep 17 00:00:00 2001 From: Vadim Zeitlin Date: Wed, 23 Mar 2005 00:18:44 +0000 Subject: [PATCH] wxTextCtrl with wxTE_RICH2 style now uses RichEdit 4.1 if available (replaces patch 1160809) git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32990 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775 --- docs/changes.txt | 1 + src/msw/textctrl.cpp | 132 ++++++++++++++++++++++--------------------- 2 files changed, 68 insertions(+), 65 deletions(-) diff --git a/docs/changes.txt b/docs/changes.txt index a0f2040983..d95e0d2d40 100644 --- a/docs/changes.txt +++ b/docs/changes.txt @@ -33,6 +33,7 @@ Unix: wxMSW: - Added "orient" parameter to wxMDIParentFrame::Tile() +- wxTextCtrl with wxTE_RICH2 style now uses RichEdit 4.1 if available wxGTK: diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp index 87d8ada59e..3172c51558 100644 --- a/src/msw/textctrl.cpp +++ b/src/msw/textctrl.cpp @@ -84,20 +84,28 @@ class wxRichEditModule : public wxModule { public: + enum Version + { + Version_1, // riched32.dll + Version_2or3, // both use riched20.dll + Version_41, // msftedit.dll (XP SP1 and Windows 2003) + Version_Max + }; + virtual bool OnInit(); virtual void OnExit(); - // load the richedit DLL of at least of required version - static bool Load(int version = 1); + // load the richedit DLL for the specified version of rich edit + static bool Load(Version version); private: // the handles to richedit 1.0 and 2.0 (or 3.0) DLLs - static HINSTANCE ms_hRichEdit[2]; + static HINSTANCE ms_hRichEdit[Version_Max]; DECLARE_DYNAMIC_CLASS(wxRichEditModule) }; -HINSTANCE wxRichEditModule::ms_hRichEdit[2] = { NULL, NULL }; +HINSTANCE wxRichEditModule::ms_hRichEdit[Version_Max] = { NULL, NULL, NULL }; IMPLEMENT_DYNAMIC_CLASS(wxRichEditModule, wxModule) @@ -280,12 +288,12 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, // do create the control - either an EDIT or RICHEDIT wxString windowClass = wxT("EDIT"); - + #if defined(__POCKETPC__) || defined(__SMARTPHONE__) // A control that capitalizes the first letter if (style & wxTE_CAPITALIZE) windowClass = wxT("CAPEDIT"); -#endif +#endif #if wxUSE_RICHEDIT if ( m_windowStyle & wxTE_AUTO_URL ) @@ -303,63 +311,58 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, // we need to load the richedit DLL before creating the rich edit control if ( m_windowStyle & wxTE_RICH ) { - static bool s_errorGiven = false;// MT-FIXME - - // Which version do we need? Use 1.0 by default because it is much more - // like the the standard EDIT or 2.0 if explicitly requested, but use - // only 2.0 in Unicode mode as 1.0 doesn't support Unicode at all + // versions 2.0, 3.0 and 4.1 of rich edit are mostly compatible with + // each other but not with version 1.0, so we have separate flags for + // the version 1.0 and the others (and so m_verRichEdit may be 0 (plain + // EDIT control), 1 for version 1.0 or 2 for any higher version) // - // TODO: RichEdit 3.0 is apparently capable of emulating RichEdit 1.0 - // (and thus EDIT) much better than RichEdit 2.0 so we probably - // should use 3.0 if available as it is the best of both worlds - - // but as I can't test it right now I don't do it (VZ) + // notice that 1.0 has no Unicode support at all so in Unicode build we + // must use another version + #if wxUSE_UNICODE - const int verRichEdit = 2; + m_verRichEdit = 2; #else // !wxUSE_UNICODE - int verRichEdit = m_windowStyle & wxTE_RICH2 ? 2 : 1; + m_verRichEdit = m_windowStyle & wxTE_RICH2 ? 2 : 1; #endif // wxUSE_UNICODE/!wxUSE_UNICODE - // only give the error msg once if the DLL can't be loaded - if ( !s_errorGiven ) + if ( m_verRichEdit == 2 ) { - // try to load the RichEdit DLL (will do nothing if already done) - if ( !wxRichEditModule::Load(verRichEdit) ) + if ( wxRichEditModule::Load(wxRichEditModule::Version_41) ) { -#if !wxUSE_UNICODE - // try another version? - verRichEdit = 3 - verRichEdit; // 1 <-> 2 - - if ( !wxRichEditModule::Load(verRichEdit) ) -#endif // wxUSE_UNICODE - { - wxLogError(_("Impossible to create a rich edit control, using simple text control instead. Please reinstall riched32.dll")); - - s_errorGiven = true; - } + // yes, class name for version 4.1 really is 5.0 + windowClass = _T("RICHEDIT50W"); + } + else if ( wxRichEditModule::Load(wxRichEditModule::Version_2or3) ) + { + windowClass = _T("RichEdit20") +#if wxUSE_UNICODE + _T("W"); +#else // ANSI + _T("A"); +#endif // Unicode/ANSI + } + else // failed to load msftedit.dll and riched20.dll + { + m_verRichEdit = 1; } } - // have we managed to load any richedit version? - if ( !s_errorGiven ) + if ( m_verRichEdit == 1 ) { - m_verRichEdit = verRichEdit; - if ( m_verRichEdit == 1 ) + if ( wxRichEditModule::Load(wxRichEditModule::Version_1) ) { - windowClass = wxT("RICHEDIT"); + windowClass = _T("RICHEDIT"); } - else + else // failed to load any richedit control DLL { -#ifndef RICHEDIT_CLASS - wxString RICHEDIT_CLASS; - RICHEDIT_CLASS.Printf(_T("RichEdit%d0"), m_verRichEdit); -#if wxUSE_UNICODE - RICHEDIT_CLASS += _T('W'); -#else // ANSI - RICHEDIT_CLASS += _T('A'); -#endif // Unicode/ANSI -#endif // !RICHEDIT_CLASS + // only give the error msg once if the DLL can't be loaded + static bool s_errorGiven = false; // MT ok as only used by GUI + + wxLogError(_("Impossible to create a rich edit control, using simple text control instead. Please reinstall riched32.dll")); - windowClass = RICHEDIT_CLASS; + s_errorGiven = true; + + m_verRichEdit = 0; } } } @@ -2619,6 +2622,8 @@ bool wxTextCtrl::GetStyle(long position, wxTextAttr& style) // wxRichEditModule // ---------------------------------------------------------------------------- +static const HINSTANCE INVALID_HINSTANCE = (HINSTANCE)-1; + bool wxRichEditModule::OnInit() { // don't do anything - we will load it when needed @@ -2629,7 +2634,7 @@ void wxRichEditModule::OnExit() { for ( size_t i = 0; i < WXSIZEOF(ms_hRichEdit); i++ ) { - if ( ms_hRichEdit[i] ) + if ( ms_hRichEdit[i] && ms_hRichEdit[i] != INVALID_HINSTANCE ) { ::FreeLibrary(ms_hRichEdit[i]); ms_hRichEdit[i] = NULL; @@ -2638,17 +2643,9 @@ void wxRichEditModule::OnExit() } /* static */ -bool wxRichEditModule::Load(int version) +bool wxRichEditModule::Load(Version version) { - // we don't support loading richedit 3.0 as I don't know how to distinguish - // it from 2.0 anyhow - wxCHECK_MSG( version == 1 || version == 2, false, - _T("incorrect richedit control version requested") ); - - // make it the index in the array - version--; - - if ( ms_hRichEdit[version] == (HINSTANCE)-1 ) + if ( ms_hRichEdit[version] == INVALID_HINSTANCE ) { // we had already tried to load it and failed return false; @@ -2660,16 +2657,21 @@ bool wxRichEditModule::Load(int version) return true; } - wxString dllname = version ? _T("riched20") : _T("riched32"); - dllname += _T(".dll"); + static const wxChar *dllnames[] = + { + _T("riched32"), + _T("riched20"), + _T("msftedit"), + }; + + wxCOMPILE_TIME_ASSERT( WXSIZEOF(dllnames) == Version_Max, + RichEditDllNamesVersionsMismatch ); - ms_hRichEdit[version] = ::LoadLibrary(dllname); + ms_hRichEdit[version] = ::LoadLibrary(dllnames[version]); if ( !ms_hRichEdit[version] ) { - wxLogSysError(_("Could not load Rich Edit DLL '%s'"), dllname.c_str()); - - ms_hRichEdit[version] = (HINSTANCE)-1; + ms_hRichEdit[version] = INVALID_HINSTANCE; return false; } -- 2.45.2